What Power Steering Fluid Do You Use?
11-06-2009, 08:25 AM
#1
Burning Brakes
Thread Starter
What Power Steering Fluid Do You Use?
Getting ready to install the new rack this or next weekend and wanted to a general consensus of what's being used.
Ken
Ken
11-06-2009, 08:47 AM
#4
Seared
Rennlist Member
Rennlist Member
11-06-2009, 11:30 AM
#5
Burning Brakes
Thread Starter
Thanks Van. Most appreciated.
I was wondering where I can buy this stuff. If I can't find it at the local Walmart or auto stores, I'll check for it at the nearest dealership in my area.
Ken
11-06-2009, 11:37 AM
#6
Seared
Rennlist Member
Rennlist Member
11-06-2009, 12:04 PM
#7
Rennlist Member
FWIW, the Pentosin CHF-11S is the stuff Porsche switched to in early 1996. Before that it was CHF-202
If I were replacing a rack I'd switch to the 11S. Concensus (if there is such a thing on a forum!) is that the 11S is kinder to the rack seals. I tend to think that the switch was made for a reason.
CHF-202 is petroleum based
CHF-11S is synthetic
CHF 202 and CHF-11S can be mixed.
If I were replacing a rack I'd switch to the 11S. Concensus (if there is such a thing on a forum!) is that the 11S is kinder to the rack seals. I tend to think that the switch was made for a reason.
CHF-202 is petroleum based
CHF-11S is synthetic
CHF 202 and CHF-11S can be mixed.
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11-06-2009, 01:21 PM
#8
FWIW, the Pentosin CHF-11S is the stuff Porsche switched to in early 1996. Before that it was CHF-202
If I were replacing a rack I'd switch to the 11S. Concensus (if there is such a thing on a forum!) is that the 11S is kinder to the rack seals. I tend to think that the switch was made for a reason.
CHF-202 is petroleum based
CHF-11S is synthetic
CHF 202 and CHF-11S can be mixed.
If I were replacing a rack I'd switch to the 11S. Concensus (if there is such a thing on a forum!) is that the 11S is kinder to the rack seals. I tend to think that the switch was made for a reason.
CHF-202 is petroleum based
CHF-11S is synthetic
CHF 202 and CHF-11S can be mixed.
http://www.lufteknic.com/Merchant2/m..._Code=PS_Fluid
I may be wrong about all of this though.
11-06-2009, 02:02 PM
#9
Rennlist Member
Mark, from what I have found over the years in my internet travels, CHF 7.1 came before 11S and that 7.1 is mineral based and not compatible with 11S. I think the switch took place in '91 or '92. CHF 202 is the current stuff, superceding 11S, and what you will get if you purchase from a Porsche dealer that has current stock. Both 11S and 202 are synthetic and are totally compatable with one another.
http://www.lufteknic.com/Merchant2/m..._Code=PS_Fluid
I may be wrong about all of this though.
http://www.lufteknic.com/Merchant2/m..._Code=PS_Fluid
I may be wrong about all of this though.
Interesting statement on the Lufteknic site... and looks like it came from the Pentosin site. The 202 can states ingredients right on it. I just re-read it to check my all-too-often bad memory
Definitely petroleum in there. Pentosin themselves also call it synthetic... hmmm. Maybe not full syn? The actual can does not say "Synthetic" anywhere on it.
202 Ingredients:
1. Lubricating Oil, petroleum. Hydrotreated neutral oil-based
2. 1-Decene, dimer, hydrogenated
3. White mineral oil (petroleum), light paraffinic
4. 2-propenoic acid, 2-methyl, and a long list of stuff that sounds synthetic + more methyls and ethyls
5. Distillates, petroleum, solvent-dewaxed heavy paraffinic
11S clearly states synthetic on the can.
http://www.pentosin.com/shop.php?c=214,228
Not sure what superseded what, if there was a supercession, but I've heard that the 11S is (allegedly!) better on the rack seals. I have no empirical data either way.
Like many of these decisions, it probably doesn't matter
11-06-2009, 02:15 PM
#10
Three Wheelin'
I use regular blue wiper fluid. MUCH cheaper and seems to work fine.
11-06-2009, 02:23 PM
#11
Burning Brakes
Thread Starter
Has anyone ever flushed/purged their PS lines of old unwanted fluid? I would really like to start with fresh Pentosin oil. How's that implemented?
Ken
Ken
